TC6.0 EX90 not showing up in CDP on cisco switches.

Alex Braunschweig · ‎04-18-2013

Our 6.0 EX90 endpoints do not show up when you run sh cdp neighbors on the cisco switches they are connected too. I could not find a bug in the toolkit on this. I have the voice vlan set to auto and it is set up the same as some of our 5.1.7 endpoints that do show up in discovery. Any ideas on a setting to fix this?

Danny De Ridder · ‎04-18-2013

Hello,

the logs would show how CDP gets started :

http://10.60.142.199/wsgi/logs/file/current?file=console

Starting cdpep
# This file is generated from /etc/init.d/S09cdpep at
# Thu Apr 18 04:41:58 UTC 2013
CDPEP_VLAN_VOICE_STATUS=Good
CDPEP_VLAN_VOICE_MODE=Off
CDPEP_VLAN_VOICE_ID=1

If you have root access to your EX90 you can run tcpdump to check for CDP packets leaving EX90 :

[dderidde-ex90-home:~] $ tcpdump -s0 'ether[20:2] == 0x2000' -vv

tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes

06:52:23.290824 CDPv2, ttl: 180s, checksum: 692 (unverified), length 92

Device-ID (0x01), length: 15 bytes: 'SEP4055390CEF66'

Port-ID (0x03), length: 4 bytes: 'eth0'

Capability (0x04), length: 4 bytes: (0x00000090): L3 capable

Version String (0x05), length: 14 bytes:

TC5.1.5.297625

Platform (0x06), length: 14 bytes: 'CTS-CODEC-EX90'

Address (0x02), length: 13 bytes: IPv4 (1) ams-dderidde-8916.cisco.com

(type CNTRL C to stop the tcpdump)

Check whether cdp process is running :

[dderidde-ex90-home:~] $ ps -aef | grep cdp

root 1709 1 0 Apr18 ? 00:00:00 cdpep Falcon.EX90/f Off

root 24677 15720 0 06:54 pts/0 00:00:00 grep cdp

[dderidde-ex90-home:~] $

Regards,

Danny.

Alex Braunschweig · ‎04-19-2013

This is what I found in the logs

Starting cdpep

CDP: VLAN Mode=Auto

CDP: Mode=Off

How do we turn this on? We only have had this problem with the new TC6.0 software. we have over 50 5.1.7 units in our network and they all work fine with the same setup.

Danny De Ridder · ‎04-26-2013

Hello,

I tried TC6.1.0 with these settings :

xConfiguration Network 1 VLAN Voice Mode: Auto

xConfiguration Network 1 VLAN Voice VlanId: 1

My console log says :

Starting cdpep

CDP: VLAN Mode=Auto

CDP: Mode=Off

VLAN: configuring vlanless

VLAN: configuring Endeavour vlan 4090

I then tried to check CDP messages using tcpdump :

[dderidde-ex90-home:~] $ tcpdump -s0 'ether[20:2] == 0x2000' -vv

tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes

17:01:56.164552 CDPv2, ttl: 180s, checksum: 692 (unverified), length 93

Device-ID (0x01), length: 15 bytes: 'SEP4055390CEF66'

Port-ID (0x03), length: 4 bytes: 'eth0'

Capability (0x04), length: 4 bytes: (0x00000090): L3 capable

Version String (0x05), length: 15 bytes:

TC6.1.0 c4723e9

Platform (0x06), length: 14 bytes: 'CTS-CODEC-EX90'

Address (0x02), length: 13 bytes: IPv4 (1) ams-dderidde-8916.cisco.com

Even with this mode off we send CDP. I think the mode in this context is whether we have voice VLAN or not. My 892 router "sees" my EX90 and Touch Panel.

show cdp neighbors detail

-------------------------

Device ID: SEP005060061E55

Entry address(es):

IP address: 10.60.142.200

Platform: CTS-CODEC-inTouch, Capabilities: Host

Interface: FastEthernet1, Port ID (outgoing port): eth0

Holdtime : 156 sec

Version :

TT6.1.0 c4723e9

advertisement version: 2

-------------------------

Device ID: SEP4055390CEF66

Entry address(es):

Platform: CTS-CODEC-EX90, Capabilities: Host

Interface: FastEthernet3, Port ID (outgoing port): eth0

Holdtime : 138 sec

Version :

TC6.1.0 c4723e9

advertisement version: 2

-------------------------

xstatus //cdp

*s Network 1 CDP Platform: "Cisco 892"

*s Network 1 CDP Version: "Cisco IOS Software, C890 Software (C890-UNIVERSALK9-M), Version 15.1(4)M2, RELEASE SOFTWARE (fc1)*Technical Support: http://www.cisco.com/techsupport*Copyright (c) 1986-2011 by Cisco Systems, Inc.*Compiled Tue 27-Sep-11 01:15 by prod_rel_team"

*s Network 1 CDP Capabilities: "0x0029"

*s Network 1 CDP DeviceId: "ams-dderidde-891.cisco.com"

*s Network 1 CDP PortID: "FastEthernet3"

*s Network 1 CDP Duplex: "Full"

*s Network 1 CDP VTPMgmtDomain: ""

*s Network 1 CDP Address: "10.60.142.193"

*s Network 1 CDP PrimaryMgmtAddress: ""

*s Network 1 CDP SysName: ""

*s Network 1 CDP SysObjectID: ""

*s Network 1 CDP VoIPApplianceVlanID: "None"

** end

OK

Alex Braunschweig · ‎04-26-2013

I followed you through everything seems okay until I show CDP on my switch and it is not here and this is what I get from my codec

xstatus //cdp

*s Network 1 CDP Platform: ""

*s Network 1 CDP Version: ""

*s Network 1 CDP Capabilities: ""

*s Network 1 CDP DeviceId: ""

*s Network 1 CDP PortID: ""

*s Network 1 CDP Duplex: ""

*s Network 1 CDP VTPMgmtDomain: ""

*s Network 1 CDP Address: ""

*s Network 1 CDP PrimaryMgmtAddress: ""

*s Network 1 CDP SysName: ""

*s Network 1 CDP SysObjectID: ""

*s Network 1 CDP VoIPApplianceVlanID: ""

** end

For whatever reason its not getting anything back. But it is sending CDP when I was in root on the codec.